package cn.wolfcode.hadoop.mapreducer.wordcount;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

import java.io.IOException;

public class WordCountMapper extends Mapper<LongWritable, Text, Text, IntWritable> {
    protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
        String text = value.toString();
        String[] words = text.split(" ");
        for (String word : words) {
            Text outKey = new Text(word);
            IntWritable outValue = new IntWritable(1);
            context.write(outKey,outValue);
        }
    }
}
